# OpenAI and Microsoft are joining forces to combat cyber threats.

*genai · news · 2026-04-23 · The Economic Times*

## Key points

- OpenAI's 'Trusted Access for Cyber' gives Microsoft access to its leading cyber-capable AI models.
- OpenAI has spent $10 million in API credits via its Cybersecurity Grant Programme for rapid adoption.
- OpenAI's new GPT-5.4-Cyber model is specifically fine-tuned for defensive cybersecurity work.
- Codex Security, OpenAI's tool, has helped fix over 3,000 critical vulnerabilities in recent rollout.
- Microsoft evaluated Anthropic’s Mythos model, finding substantial improvements in detection engineering tasks.

**Companies:** Microsoft, OpenAI
**Countries:** United States

[Read the full story on The Economic Times](https://economictimes.indiatimes.com/tech/technology/openai-microsoft-expand-cybersecurity-partnership-amid-rising-ai-threats/articleshow/130477222.cms)

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